Car-part forging.



W. D. PORSYTH.

CAR PART FORGING.

APPLICATION FILED AUG.30, 1913.

1,084,263. Patented Jail. 13, 1914.

WITNESSES 4 INVENTOR a may a 0 COLUMBIA PLANOGRAPH IO-,WASHINGTON, D, c.

FNITED STATES PATENT OFFICE.

WILLIAM I). FORSYTH, 0F YOUNGSTOWN, OHIO, ASSIGNOR TO RAILWAY PRODUCTS CORPORATION, OF BUFFALO, NEW YORK, A CORPORATION OF NEW YORK.

CAR-PART FORGING.

To all whom it may concern:

Be it known that 1, WILLIAM D. FoRsY'rH, a citizen of the United States, residing at Youngstown, in the county of Mahoning and State of Ohio, have invented new and useful Improvements in Car-Part Forgings, of which the following is a specification.

This invention relates to improvements in forgings for car parts.

.The principal object of my invention is to provide forgings for car parts, preferably for car truck side frames made from commercial shapes, comprising a compression member, a tension member and means for attaching said forgings to car structures, all of which members and means are integral in my improved forging.

My invention consists of a forging for a car part, preferably for a car truck side frame, made from a rolled, forged or pressed metal beam of substantially I-beam cross section, so that said forging shall comprise a compression member, a tension member, and means for attaching the same to car structures, all integral with each other.

In the accompanying drawings forming part of this specification, Figure 1 is an end view of the metal beam from which my improved forging is made; Fig. 2 is a side view of Fig. 1; Fig. 3 is a side view of Fig. 2 with the beam expanded to provide a bolster pedestal opening; and Fig. 4 is a top plan view of Fig. 3.

Like figures of reference refer to like parts throughout.

In Figs. 1 and 2, 1 represents a forged, rolled or pressed I-beam, having a web 2 connecting the flanges thereof, marked 3, 3, on one side of web 2, and a, 4, on the other side of said web.

In Fig. 2, 5 represents an undulating line, along which flanges 3, 3, of 1 may be sheared prior to the expansion of beam 1. 6 represents the termination of dotted line 8; dotted line 7 represents the position of web 2 in beam 1, as shown in Fig. 2. Flanges 4, 4, of beam 1 may be sheared along dotted lines 7 and 8, between the ends of beam 1 and. points 6, Fig. 2.

In Fig. 1, 9, 9, indicates slots by dotted lines made in flanges 3, 3, said slot 9 is shown in flange 3 in Fig. 2. Said slot 9 may be made in any of the flanges between the edges of the flanges and the surface of web 2 and intermediate the ends of beam 1.

Specification of Letters Patent.

Application filed August 30, 1913.

Patented Jan. 13, 1914.

Serial No. 787,423.

When beam 1 has had its flanges sheared and one pair of its flanges slotted, as herein before described, it may be expanded either while cold or properly heated in direction parallel to the transverse axis of the flanges, and at right angles to the transverse axis of web 2, so that when the expansion thereof is completed, it will take substantially the shape of the entire figure shown in Fig. 3; said expansion providing a bolster pedestal opening 16, preferably of the shape shown by lines 13, 14, 15, 17, 18, 19, although said opening may be varied to accommodate the bolster pedestal or other devices with which to provide for the use of bolsters in connection with frames into the construction of which the improved car truck side frame forging herein described enters. When the expansion of beam 1 has been completed, as aforesaid, its upper edge assumes a curve substantially of the curvature of curve 12; its lower edge is bounded by lines 13, 1 1 and 15, or a modification thereof, and at both ends thereof, web 2 extends from, substantially, points 10 and 11 to the end of the beam. The flange 3, as thus expanded, and comprising all of flange 3 above web 2 at the ends of the expanded beam 1, constitutes the compression member of the forging herein described. The tension member consists of web 2 from end to end of beam 1, its top surface in bolster pedestal opening 16 being divided by lines 17, 18 and 19, and its bottom surface, between its flanges 4, being defined by dotted line 22; its lower and outer edge being defined by the lower edge of the beam in Fig. 3, particularly by the lines between the reference figures 10, 21, 21 and 11, the tension member having the web 2 and parallel flanges 4L between points 10 and 11 in Fig. 3. The ends of the forging consist of parts which enter into the compression and tension members and constitute the means for aifixing journal boxes to the forging. Said ends of said forging are those parts of the beam 1 shown in Figs. 3 and 4: between the ends of said beam 1 and imaginary lines drawn on Fig. 3 vertically between points 10, 10 and 11, 11, and in Fig. 1 beyond the lines 10, 10 and 11, 11.

Then the beam 1 is expanded so as to take the shape shown in Fig. 3, the flanges 3, 3, comprising part of the tension member between 1.0 and 11 and 10 and 11', Fig. 4, bend slightly and may be controlled so as to bend outwardly, as shown in Fig. 4, or to bend inwardly, if that be desired, the bending of flange 8 to compensate for the bending of beam 1 while said beam is being expanded.

What- I claim as my invention is:

1. A metal beam for a forging for a car part, comprising a web connecting parallel flanges at its ends, said flanges being longitudinally slitted intermediate their ends.

2. A metal Lbeam for a forging for a car part with its flanges longitudinally slitted intermediate their ends on the same side of its web. 7

3. A forging for a car part made from a metal Lbeam whose flanges are longitudinally slitted intermediate their ends on one side of the web of said I-beam, which is expanded at said slits in direction at right angles to said web, between the ends of said slits.

4. A forging for a car part made from a metal I-beam whose flanges are slit-ted longitudinally intermediate their ends; said beam being expanded at said slits to form in said forging a. compression member, a tension member and means of attaching journal boxes to said forging and a bolster opening therein.

5. A forging for a car truck side frame made from a metal I-beam whose flanges are slitted longitudinally intermediate their ends, on same side of said web, said beam being expanded at said slits to form in said forging a compression member, a tension member and means of attaching journal boxes to said forging, and a bolster opening therein.

6. A forging for a car truck side frame made from a metal I-beam whose flanges are slitted longitudinally intermediate their ends on one side of its web; said forging comprising a compression member constituted substantially of the slitted flanges of said beam; a tension member constituted substantially of the web and remaining flanges of said beam; and means of attaching journal boxes to said forging constituted substantially of the ends of said web beyond the bolster opening hereinafter mentioned; said beam being expanded at said slits to form a bolster opening in said forging.

7. A forging for a car truck side frame made from a metal I-beam whose flanges are slitted longitudinally intermediate their ends on one side of its web; said forging comprising a compression member constituted substantially of the slitted flanges of said beam; a tension member constituted substantially of the web and remaining flanges of said beam; and means of attach ing journal boxes to said forging constituted substantially of the ends of said web beyond the bolster opening hereinafter mentioned; said beam expanded at said slits at right angles to said web to form a bolster opening in said forging.

In witness whereof I have hereunto subscribed my name in the presence of two subscribing witnesses.

l/VILLIAM D. FORSYTH lVitnesses M. E. THOMAS, J. F. OALLAHAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, 

